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NATI-I .1r-N P. MULLOY, or wALTHA-u. MASSACHUSETTS. Letters Patent No. 61,556, dated January 29V, 1867; antedatecl January 19, 1867.

IMPROVBD KNIFE-CLEANER.

TO ALL PERSONS TO WHOM THESE PRESENTS SHALL COME:

13e-itl known' that I, NATHAN PMULLOVY, of Waltham, inthe county of Middlesex, and State of Massachusetts "have made a newand useful Invention fdr Cleanjn f or Polishin Knives or-Cutler'; and do hereb a g 5 Y declare the same to be fully described in the following specification. and represented in theaecompanying drawings,.of which- AFigurelfis a front elevation. Figure 2, a side elevation; and Figures 3 and 4, longitudinal and vertical sections of it.

In the said drawings, A is a base-block of metal, which may be provided with any suitable means of fixing.

it firmly to a table, post, or bench, such means as shown in the drawing being afbent arm, B, extended downwardfrom the said block A, and provided with a clamp-screw, C, screwed upward through it, the saidarm and screw being formed and arranged relatively to the block, as exhibited in the drawings. The said bleek may llave n shape analogous to that of an anvil. There projects from the front side of the part A an extension, y, which has a vertical slot or socket, h, madein it for the reception of a piece of sole-leather, z', which is for the purpose of cleaning the surface of a fork or other article of cutlery, which cannot well be inserted between the other cleaning surfaces to be hereinafter described. The said extension, g, and the part A in its front and two ends, are surrounded by a trough, c, w'hich has slots, Z Z, made down through it close to the ends of the part A, such slots being for the reception of a strip of leather, E, employed to cover the upper surface of the bed A.4

This piece of leather is held in place by tacks or pins, m m, driven through those parts of it'whieh`extend below the trough. There projects upward from the rear part or side ofthe base A a guide or ledge, n, which serves as a means of keeping a knife in 'itsiproper position between the adjacent polishing surfaces while itv may i be in the act of beingcleaned by them. There extends upward from the base block A, in manner as represented in the drawings, a goose-neck or curved arm, Ffwhich terminates in acylinder, a, arranged as shown in the figures; A'red, G, slides vertically through th-c said cylinder, and its foot is pivoted in a step, b, formed in a projectiom'e, extended upward from the middle of a dished plunger, H. l A spring, I, enveloping the said projection and rod and bearing' against the goose-neck and the bottom of the space o within the piunger, serves to press the plunger down towardvthe bed A. The lower side or surface of the plunger is to b e faced with leather, p, and there should hang from one end of such plunger an apron or piece of leather,q,the purpose of which is to prevent loss of the sand or polishing material used invcleaning the upper surface of Aa knife. The apron by resting on thcknife will arrest the polishing or cleaning powder discharged frein the knife while being drawn from between the polishing surfaces, and will cause or aid in causing it to fall down into the trough. The bottom of the dished plunger and the leather applied to such bottom are perforated with holes to let the polishing or cleaning powder placed within the plunger pass downsupon the knife as well as upon the'polishing surface of the bed.

In using this machine, a knife to be polished or cleaned isto be inserted between lthe leathers of the bed and plunger and quickly moved longitudinally back and forth, the plunger having previously been supplied with powdered brick-dust, rotten-stone, or emery, or other suitable material'. The step b and the lower end of the rod Gr should be so formed as to allowI the plunger to rock or tilt, so as to accommodate itself to the upper surface of a knife-blade, when such blade may be on the bed-polishing surface.

I make no claim te` the invention described in' thc United States Patent No. 20,391, dated May 25, 1858.

What I claim as my invention, is

' My. improved knife-polisher, as made with the fork-cleaner,l or, in otherwords, the piece of leather z' and its supporter L, arranged and eombincdwith the knife-polishing bed and its plunger,` applied and to operate together substantially as set forth.

- I also claim the combination of the trough [c with the knife-polishing bed and plunger, applied together in manner and so as to operate as explained.

I also claim the combination and arrangement of the lathe'rreceiving `slots l Zwith the trough 7c, lthe bed A combined with 'the plunger as set forth. l

I also claim the arrangement and combination of the apron q with the plunger, bed, and trough, arranged and combined substantially as set forth.

I also claim the arrangement and combination of the guide n with the bed and the plunger H, when arranged and combined asand for the purpose set forth.

N. P. MULLOY..

Witnesses:

It. H. EDDY, F. P. HALE, Jr. 

